We're dividing 631508 by 99 
Let's see how many times 99 fits into 631508.

Advancing to step 1:
99 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 99

Advancing to step 2:
When dividing 63 by 99, we get 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Fetch the next digit (1) from the dividend, attach it to 63 and continue: 631 / 99

Going ahead to step 3:
If we divide 631 by 99, we get 6 and a remainder of 37.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 594 from 631 and we're left with 37.
Append the next digit (5) from the dividend to 37 and continue with: 375 / 99

On to step 4:
99 can be fit into 375 3 times, resulting in a remainder of 78.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
Deduct 297 from 375 and we're left with 78.
Fetch the next digit (0) from the dividend, attach it to 78 and continue: 780 / 99

Advancing to step 5:
If we divide 780 by 99, we get 7 and a remainder of 87.
Use 7 as the next digit of our solution. 
Result so far: 637.0
If we subtract 693 from 780, we get 87.
Bring next digit (8) of the dividend behind the 87 and repeat the process: 878 / 99

Advancing to step 6:
99 goes into 878 8 times with a remainder of 86.
Write down 8 as next digit of the result. 
Result so far: 6378.0
If we take 792 away from 878, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 7:
When dividing 860 by 99, we get 8 with a remainder of 68.
The next digit of our result is 8. 
Result so far: 6378.8
If we take 792 away from 860, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 8:
When dividing 680 by 99, we get 6 with a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 6378.86
Subtract 594 from 680 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 9:
If we divide 860 by 99, we get 8 and a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 6378.868
If we subtract 792 from 860, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 10:
99 goes into 680 6 times with a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 6378.8686
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 11:
If we divide 860 by 99, we get 8 and a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 6378.86868
If we take 792 away from 860, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 12:
If we divide 680 by 99, we get 6 and a remainder of 86.
The next digit of our result is 6. 
Result so far: 6378.868686
Subtract 594 from 680 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 13:
When dividing 860 by 99, we get 8 with a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 6378.8686868
If we take 792 away from 860, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 14:
When dividing 680 by 99, we get 6 with a remainder of 86.
The next digit of our result is 6. 
Result so far: 6378.86868686
Deduct 594 from 680 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final outcome is 6378.86868686, with a leftover of 8.6e-08.